X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm1.access.bullet.mail.sp2.yahoo.com ([98.139.44.128] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with SMTP id 5054722 for flyrotary@lancaironline.net; Sun, 17 Jul 2011 16:45:44 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.128; envelope-from=keltro@att.net Received: from [98.139.44.105] by nm1.access.bullet.mail.sp2.yahoo.com with NNFMP; 17 Jul 2011 20:45:10 -0000 Received: from [98.139.44.76] by tm10.access.bullet.mail.sp2.yahoo.com with NNFMP; 17 Jul 2011 20:45:10 -0000 Received: from [127.0.0.1] by omp1013.access.mail.sp2.yahoo.com with NNFMP; 17 Jul 2011 20:45:10 -0000 X-Yahoo-Newman-Property: ymail-3 X-Yahoo-Newman-Id: 949870.97660.bm@omp1013.access.mail.sp2.yahoo.com Received: (qmail 25997 invoked by uid 60001); 17 Jul 2011 20:45:10 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1310935510; bh=G+a3C5SlrdgaC3jem7FmFUz4EJK4RRGX8gV7SZRMehw=; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=PFXy70NemYbbcFlpXy3jbzJi5NHknaY1VyQxL9HsmsPwM9keHi9ua6KQ/AWo/W/mati3wxb4igA11VBOJg6fqs458SBgais9447m66aps8ohasWZcD1CnphXoCcQWzW+Kf4lgSxm7rmJsmYiykWQFnhWg5CpxWeXS9HKEJdKyZE= DomainKey-Signature:a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; h=X-YMail-OSG:Received:X-Mailer:References:Message-ID:Date:From:Reply-To:Subject:To:In-Reply-To:MIME-Version:Content-Type; b=X6I8vJqMaV4UqJnWsDTu2z5ePJWOVAT3ALYsz7Mg+0xhaLUQWbqLL3G1rd0DB+9QsbBpm5vzu3JnZSPwSueFwas+aBmepX3emP0W4M+5Ts4+pxT3wYsoa87EK11WDtDVe6gNzr95cyIsx8hDlObyj7i9MtE1+k2yNMfWYOC6a8c=; X-YMail-OSG: vNDOW24VM1mWhFjngEHC4KNWesKGgHU36AjzUUS77fFdFk9 q2IBDWvuANl46EFvwre_AZbNHHPts_sR0YuHO3IGG_kr3YVAjt_NbzcQlEAA nmxyo5jj2XlBo3.ml4vTICWVJY6hZDv0WDGThijP1SQXaP6taxrFzQhYPeO. ghjGtNtcmOmM5EdS1ufNrjrz8SFGO1366nQkh69JRYoLwm45YY.e1MIF7xph xbb_SkGeN1t1EyL1iNx1gcX2ZFAwswy8pFNMyEKqh6wk5zX_INHIjLXounZk qfN4RgZCLZryEHPeJkAuJnNezep6z.OmcX6aBG0aEqvWWHP6iSt1DpxUXlqg 2cmAAKsruwOo3mHOaKGbrRCNNm5i5Ig4R5mc69gBAlZ7mVGbjUJzt.OpIXAp SyIiMYJN0wUQmNhm.eQi.K63MQiXE7mllq7_dQ5sU3sozCia.t_.swc24u4C 7uD8x_P9oytwrLMe5w1poBDFCnsD0CowpDEJfQTwedt4xKvRDpiRgEaZ68q. p0DWWiO56GjV0NySaI2UFuFD2LIaMY.CTjYa6F.G2LUBhDAZmiC9uDlhw3VU FDqGojKEIcGWQz.bf6dl8LZNMpKYFjYhsdUmvYaVpuoVdp5PLNV86G83eGQy tvVuZwwC.T3r5vmv9WGaP3Xg_h6xq5mXhW9XAbfVmcyeVITRkY0eFcaLkMr1 B9Bwe52RkvL1pkBVGjiIydOrxn1Y47GonqJPdyYCjBw-- Received: from [208.114.39.18] by web83914.mail.sp1.yahoo.com via HTTP; Sun, 17 Jul 2011 13:45:10 PDT X-Mailer: YahooMailWebService/0.8.112.307740 References: Message-ID: <1310935510.90732.YahooMailNeo@web83914.mail.sp1.yahoo.com> Date: Sun, 17 Jul 2011 13:45:10 -0700 (PDT) From: Kelly Troyer Reply-To: Kelly Troyer Subject: Re: Ok Here are the important flywheel measurements To: Rotary motors in aircraft In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="0-794909344-1310935510=:90732" --0-794909344-1310935510=:90732 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Dave=0A=A0=0A=A0 The flywheel friction surface of my "ACT" flywheel measure= s 0.972 or 0.018 proud of (or aft) of=0Athe clutch pressure plate bolt surf= ace.............It probably will not be necessary to turn the friction=0Asu= rface down that 0.018 but would put=A0the RD1X drive plate placement at app= rox 0.954 which=0Ais almost your exactly your measurement of 0.950.........= ........I have an E mail in to the flywheel =0Amanufacturer to clarify the = number of ring=A0gear=A0teeth on the 9.8 lb version..........Have to ask th= is=0Aquestion as one dealer's web page lists the 9.8 lb flywheel as having = 116 teeth and another has=0Ait listed as 125 teeth...........If the 9.8 lb = version is identical 13.8 lb version (Mine)=A0except for the=A0=0Aadditiona= l machine work to reduce weight I would say go for it even though it is abo= ut $25.00=0Amore expensive (I guarantee you could not get that much machine= work done for that amount=0Aof money)..............=0A=A0=0A=A0=A0=A0=A0 D= ave I know there are a couple of other fixes for this problem being worked= =A0on at this time=0Abut If I was going to flog=A0my engine and re-drive li= ke I think you are I=A0believe that this flywheel=0Awould at least make thi= s part of your re-drive pretty much bulletproof even though it will add a= =0Afew lbs............According to my inspection I know there are a few mor= e lbs that can be removed=0Afrom the clutch friction surface (holes milled = through it)=A0if you wanted to pursue it..............=0A=A0=0A=A0=A0=A0 Af= ter all that unasked for advice I have another question for you............= Did you replace the =0Aaluminum rivets in your RD1X damper plate with steel= bolts ?..............I seem to remember that =0Ayou did after several damp= ers (and yours)=A0experienced alum streaking around the rivets...........= =0A=A0=0AFWIW=0A=A0=0A=A0=0A=A0Kelly Troyer=0A"DYKE DELTA JD2" (Eventually)= =0A"13B ROTARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backplate/Oil Mani= fold=0A"TURBONETICS"_TO4E50 Turbo=0A=0AFrom: Kelly Troyer = =0ATo: Rotary motors in aircraft =0ASent: Satu= rday, July 16, 2011 11:18 PM=0ASubject: [FlyRotary] ]Re: Ok Here are the im= portant flywheel measurements=0A=0A=0ADave and All,=0A=A0=0A=A0=A0=A0=A0=A0= =A0=A0=A0 Just verified your 0.913 measurement from the eccentric shaft nut= face of the rear counterweight=0Ato the rear (aft) face of the "ACT" 13.8 = lb flywheel starter ring gear.............Waiting on the 93-95 Turbo=0Astar= ter to see if it has a longer housing and will engage the flywheel ring gea= r..........=0A=A0=0A=A0=A0=A0=A0=A0=A0=A0=A0 After inspecting this flywheel= I believe that with the help of my CCM (Cheap Chinese Mill) that it=0Awill= .be possible to whittle this thing down to under eight lbs..............I h= ave no need for the thick clutch=0Afriction surface=A0and believe=A0milling= several large holes around this area=A0=A0will not=A0sacrifice any strengt= h=0Aas it is severely overbuilt for the loads we will put on it in an aircr= aft...........We will see............=0A=0AKelly Troyer=0A"DYKE DELTA JD2" = (Eventually)=0A"13B ROTARY"_ Engine=0A"RWS"_RD1C/EC2/EM2=0A"MISTRAL"_Backpl= ate/Oil Manifold=0A"TURBONETICS"_TO4E50 Turbo=0A=0AFrom: David Leonard =0ATo: Rotary motors in aircraft =0ASent: Saturday, July 16, 2011 5:05 PM=0ASubject: [FlyRotary] Re: Ok = Here are the important flywheel measurements=0A=0A=0AGood work Kelly.=0A=0A= I would assume that your new flywheel would put the ring gear right where t= he stock flywheel puts it.. and that would be about .365 further from the g= ear drive.=A0 I'm not sure that a turbo starter is going to fix our problem= s with that distance.=A0 What we need is just a starter that extends furthe= r, but is otherwise unchanged.=A0 Looking at the pictures online, the first= thing I notice is that the solenoid is mounted on the oppisite side of the= gear opening from the one we currently use.=A0 Even if that will not inter= fere with anything else under your cowl, it makes me suspicous that it may = be mounted the other way around - and consequently turn in the opposite dir= ection.=A0 But I don't know that it won't work..=A0 waiting to get measurem= ents from you on that starter :-)=0A=0AIf it dosent fit, another option bes= ides welding on another ring gear might be to trim down the mounting wings = on the current starter and make a recess in the adapter plate in order to e= xtend the reach of the gear enough to engage.=0A=0A-- =0ADavid Leonard=0A= =0ATurbo Rotary RV-6 N4VY=0Ahttp://N4VY.RotaryRoster.net=0Ahttp://RotaryRos= ter.net=0A=0A=0AOne option if it does not work=0A=0A=0AOn Sat, Jul 16, 2011= at 2:21 PM, Kelly Troyer wrote:=0A=0ADave and All,=0A>=A0= =0A>=A0=A0=A0=A0=A0=A0=A0=A0=A0 Ok Dave the "ACT" "Streetlite" 13.8 lb flyw= heel was just delivered and I am in process of taking=0A>your measurements = to see where we stand................This flywheel is a thing of beauty (to= a RotorHead)=0A>and my RD1C drive plate will bolt to it with no problem (t= hrough drill and spotface the rear of the flywheel=0A>because it has a slig= ht taper in that area).............I just have to verify just where the RD1= C drive splines =0A>will be positioned (fore and aft) on the input shaft co= mpared to the RX7 flexplate.............The clutch plate=0A>friction area i= s slightly raised (about 0.065) above the clutch mount area and I would pro= bably take it=0A>down tto the clutch level (probably not necessary but woul= d reduce weight slightly.............I have a 93-95=0A>Turbo starter on the= way (should take care of starter mesh problem)..............If you are int= erested I can=0A>guide you to another 93-95 starter (used $49.00 with/shipp= ing) if it is still for sale.............=0A>=A0=A0=A0=A0=A0=A0=A0 One othe= r thing at this time..............The lighter 9.8 lb version may be usable = but it is listed as 116=0A>ring gear teeth and I have not found out what it= s diameter is and what starter would be used with it......=0A>=A0=A0=A0=A0= =A0=A0=A0 I suspect it may be the diameter of the NA 13B flywheels and may = use the 86-91=A0NA manual trans=0A>starter............You need to talk to t= he manufacturer..........They are in Lancaster, Calif............The 9.8 lb= =0A>version is a little more expensive due to more extensive machine work t= o reduce weight.............See the=0A>link below............The link to TH= Motorsports has the best price I have found on the 9.8 lb flywheel......The= =0A>photo on their page is not the Rotary 9.8 lb version...........=A0=0A>= =A0=0A>http://www2.advancedclutch.com/products/xact_flywheels.aspx=0A>=A0= =0A>=A0=0A>http://thmotorsports.com/act/act_flywheel_prolite/600140/i-47718= .aspx=0A>=0A>Kelly Troyer=0A>"DYKE DELTA JD2" (Eventually)=0A>"13B ROTARY"_= Engine=0A>"RWS"_RD1C/EC2/EM2=0A>"MISTRAL"_Backplate/Oil Manifold=0A>"TURBO= NETICS"_TO4E50 Turbo=0A>=0A>=0A>From: Kelly Troyer =0A>To: = Rotary motors in aircraft =0A>Sent: Friday, Ju= ly 15, 2011 12:34 PM=0A>Subject: [FlyRotary] Re: Ok Here are the important = flywheel measurements=0A>=0A>=0A>Dave and All,=0A>=A0=0A>=A0=A0=A0=A0=A0=A0= =A0=A0 Sounds encourageing...............Replacing the starter with turbo m= odel would seem to be=0A>least expensive and safer than adding additional r= ing gear + welding..............I also echo what=0A>Bill and Bobby have sai= d concerning the Al Wick fix and getting Tracy's thoughts about cause=0A>of= problem and perhaps need for periodic inspection and/or rubber=A0isolator = replacement........=A0=0A>=0A>Kelly Troyer=0A>"DYKE DELTA JD2" (Eventually)= =0A>"13B ROTARY"_ Engine=0A>"RWS"_RD1C/EC2/EM2=0A>"MISTRAL"_Backplate/Oil M= anifold=0A>"TURBONETICS"_TO4E50 Turbo=0A>=0A>=0A>From: David Leonard =0A>To: Rotary motors in aircraft =0A>Sent: Thursday, July 14, 2011 11:41 PM=0A>Subject: [FlyRotary] Ok He= re are the important flywheel measurements=0A>=0A>=0A>I finally got to the = hangar and measured out my S5 turbo flywheel and the remains of my S5 flexp= late.=A0 The results are very encouraging, even as good as the possibly cou= ld be to make the swap, but I only had ten min at the hangar before I had t= o leave to pick up my daughter from daycare, so they are one try and slight= ly sloppy... I make no guarantees.=A0 The height measurements of the flex p= late were particularly suspect because, well, mine is all warped and broken= .=0A>=0A>Ring Gear Diameter - Perfect fit.=A0 As we suspected, same size, s= ame tooth spacing.=0A>=0A>Ring Gear Fore-Aft Placement - As measured from t= he underside of the big nut. (for all further reference, aft means aft in t= he CAR).=A0 The flex plate puts the aft side of the ring gear 1.290 inches = from the front of the big nut. The flywheel puts it 0.913.=A0 So the flex p= late puts the ring gear (appx) 0.377 in. further aft.=A0 This is actually f= ortuitous because it just so happens that the ring gear thickness is .365 .= ..=A0=A0=A0 So all we have to do to fix the discrepancy is weld and extra r= ing gears onto to the flywheel ring gear and there will be teeth that the s= tarter can reach:(bottom of the page.. the cost $80)=0A>http://mazdatrix.co= m/flywheel.htm=0A>It may also be possible to fix the discrepancy by changin= g the starter... will look into that.=0A>=0A>Damper Plate Placement - On th= e flywheel, the mounting surface is proud (or aft) of the ring gear.=A0 On = the flex plate, the mounting surface is recessed (or forward) from the ring= gear. And it all pretty much works out.=A0 That position on the flywheel w= ill vary somewhat depending on which flywheel you have and how much wear yo= u have on the clutch slip surface. But on my (I assume well-worn) flywheel = the placement was 0.965 while the flex plate was 0.950.=A0 Pretty damn clos= e and given measurement error it might me meant to be right on.=A0 Or, any = difference could be made up by trimming down the spline on the damper plate= or removing or adding spacers between the two.=0A>=0A>So in my mind, a fly= wheel is the way to go.=A0 Stout, easy to get, pick your weight, only mods = seem to be drilling the mounting holes and welding on a second gear ring.= =0A>=0A>-- =0A>David Leonard=0A>=0A>Turbo Rotary RV-6 N4VY=0A>http://N4VY.R= otaryRoster.net=0A>http://RotaryRoster.net=0A>=0A>=0A>=0A>=0A> --0-794909344-1310935510=:90732 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable
Dave
 
  The flywheel = friction surface of my "ACT" flywheel measure= s 0.972 or 0.018 proud of (or aft) of
the clutch pressure = plate bolt surface.............It probably will not be necessary to turn th= e friction
surface down that 0.= 018 but would put the RD1X drive plate placement at approx 0.954 which=
is almost your exact= ly your measurement of 0.950.................I have an E mail in to the fly= wheel
manufacturer to clar= ify the number of ring gear teeth on the 9.8 lb version..........= Have to ask this
question as one deal= er's web page lists the 9.8 lb flywheel as having 116 teeth and another has=
it listed as 125 tee= th...........If the 9.8 lb version is identical 13.8 lb version (Mine) = ;except for the 
additional machine w= ork to reduce weight I would say go for it even though it is about $25.00
more expensive (I guarantee you= could not get that much machine work done for that amount
of money)...........= ...
 
   &n= bsp; Dave I know there are a couple of other fixes for this problem being w= orked on at this time
but If I was going t= o flog my engine and re-drive like I think you are I believe that this flywh= eel
would at least make = this part of your re-driv= e pretty much bulletproof even though it will add a
few lbs............A= ccording to my inspection I know there are a few more lbs that can be remov= ed
from the clutch fric= tion surface (holes milled through it) if you wanted to pursue it.....= .........
 
    A= fter all that unasked for advice I have another question for you...........= .Did you replace the
aluminum rivets in y= our RD1X damper plate with steel bolts ?..............I seem to remember th= at
you did after several dampers (and yours) experienced a= lum streaking around the rivets...........
 
FWIW
<= /SPAN> 
 
 Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM= 2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50 Turbo

From:= Kelly Troyer <keltro@att.net>
To: Rotary motors in aircraft <flyrotary@lancair= online.net>
Sent: Sat= urday, July 16, 2011 11:18 PM
Subje= ct: [FlyRotary] ]Re: Ok Here are t= he important flywheel measurements

Dave and All,
 
         Just verified y= our 0.913 measurement from the eccentric shaft nut face of the rear counter= weight
to the rear (aft) face of the "ACT" 13.8 lb flywheel starter rin= g gear.............Waiting on the 93-95 Turbo
starter to see if it has a longer housing and will engage the fl= ywheel ring gear..........
 
         After inspectin= g this flywheel I believe that with the help of my CCM (Cheap Chinese Mill) tha= t it
will.be possible to whittle this thing down to under eight lbs..= ............I have no need for the thick clutch
friction surface and believe milling several large hol= es around this area  will not sacrifice= any strength
as it is severely overbuilt for the loads we will put on it in a= n aircraft...........We will see............
 
Kelly Troyer
"<= SPAN id=3Dmisspell-14>DYKE DELTA JD2" (= Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold=
"TURBONETICS<= /SPAN>"_TO4E50 Turbo

From: David Leonard <wd= leonard@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Saturday, July 16, 2011 5:05 = PM
Subject: [FlyRotary] = Re: Ok Here are the important flywheel measurements

Good work Kelly.

I would assume that your new= flywheel would put the ring gear right where the stock flywheel puts it.. = and that would be about .365 further from the gear drive.  I'm not sur= e that a turbo starter is going to fix our problems with that distance.&nbs= p; What we need is just a starter that extends further, but is otherwise un= changed.  Looking at the pictures online, the first thing I notice is that= the solenoid is mounted on the oppisite side of the gear opening from the one= we currently use.  Even if that will not interfere with anything else= under your cowl, it makes me suspicous that it may be mounted the other way= around - and consequently turn in the opposite direction.  But I don'= t know that it won't work..  waiting to get measurements from you on that st= arter :-)

If it dosent fit, another option besides welding on another r= ing gear might be to trim down the mounting wings on the current starter an= d make a recess in the adapter plate in order to extend the reach of the ge= ar enough to engage.

--
David Leonard

Turbo Rotary RV-6 N= 4VY=
http://N4VY.RotaryRoster.net
http://RotaryRoster.net


One o= ption if it does not work

On Sat, Jul 16, 2011 at 2:21 PM, Kelly= Troyer <keltro@att.net><= /SPAN> wrote:
Dave and All,
 
          Ok Dave the= "ACT" "Streetlit= e" 13.8 lb flywheel was just delivered and I am in process of= taking
your measurements to see where we stand................This flyw= heel is a thing of beauty (to a RotorHead)
and my RD1C drive plate will bolt to it with no problem (through= drill and spotfa= ce the rear of the flywheel
because it has a slight taper in that area).............I just h= ave to verify just where the RD1C drive splines
will be positioned (fore and aft) on the input shaft compared to= the RX7 flexplat= e.............The clutch plate
friction area is slightly raised (about 0.065) above the clutch = mount area and I would probably take it
down t= to the clutch level (probably not necessary but would reduce = weight slightly.............I have a 93-95
Turbo starter on the way (should take care of starter mesh probl= em)..............If you are interested I can
guide you to another 93-95 starter (used $49.00 with/shipping) i= f it is still for sale.............
        One other thing at th= is time..............The lighter 9.8 lb version may be usable but it is lis= ted as 116
ring gear teeth and I have not found out what its diameter is an= d what starter would be used with it......
        I suspect it may be t= he diameter of the NA 13B flywheels and may use the 86-91 NA manual tr= ans
starter............You need to talk to the manufacturer.........= .They are in Lancaster, Calif............The 9.8 lb
version is a little more expensive due to more extensive machine= work to reduce weight.............See the
link below............The link to THMotorsports has the best price = I have found on the 9.8 lb flywheel......The
photo on their page is not the Rotary 9.8 lb version...........&= nbsp;
 
 
 
 
Kelly Troyer
"= DYKE DELTA JD2" = (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Mani= fold
"TURBONETICS= "_TO4E50 Turbo

From:<= /SPAN> Kelly Troyer <keltro@att.net><= BR>To: Rotary motors in air= craft <flyrotary@lanca= ironline.net>
Sent: Friday, July 15, 2011 12:34 PM
S= ubject: [FlyRotary] Re: Ok Here are the important flywheel measurem= ents

Dave and All,
 
         Sounds encourageing...............Replacing the starter with turbo model would seem to be
least expensive and safer than adding additional ring gear + wel= ding..............I also echo what
Bill and Bobby have said concerning the Al Wick fix and getting = Tracy's thoughts about cause
of problem and perhaps need for periodic inspection and/or rubbe= r isolator replacement........ 
 
Kelly Troyer
"= DYKE DELTA JD2" = (Eventually)
"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Mani= fold
"TURBONETICS= "_TO4E50 Turbo

From:<= /SPAN> David Leonard <wdleonard@gm= ail.com>
To: Rota= ry motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Ok Here are the important flywheel measurem= ents

I finally got to the hangar and measured out my S5 turbo flywheel and = the remains of my S5 flexplate.  The results are very encouraging, even a= s good as the possibly could be to make the swap, but I only had ten min at= the hangar before I had to leave to pick up my daughter from daycare, so t= hey are one try and slightly sloppy... I make no guarantees.  The heig= ht measurements of the flex plate were particularly suspect because, well, = mine is all warped and broken.

Ring Gear Diameter - Perfect f= it.  As we suspected, same size, same tooth spacing.

Ring Ge= ar Fore-Aft Placement - As measured from the underside of the big nut. = (for all further reference, aft means aft in the CAR).  The flex plate= puts the aft side of the ring gear 1.290 inches from the front of the big = nut. The flywheel puts it 0.913.  So the flex plate puts the ring gear (appx) 0.377 in. further aft.  This is actually fortuitous because = it just so happens that the ring gear thickness is .365 ...  &nbs= p; So all we have to do to fix the discrepancy is weld and extra ring gears= onto to the flywheel ring gear and there will be teeth that the starter ca= n reach:(bottom of the page.. the cost $80)
http://mazdatrix.com/flywh= eel.htm
It may also be possible to fix the discrepancy by changing t= he starter... will look into that.

Damper Plate Placement - O= n the flywheel, the mounting surface is proud (or aft) of the ring gear.&nb= sp; On the flex plate, the mounting surface is recessed (or forward) from t= he ring gear. And it all pretty much works out.  That position on the = flywheel will vary somewhat depending on which flywheel you have and how mu= ch wear you have on the clutch slip surface. But on my (I assume well-worn) f= lywheel the placement was 0.965 while the flex plate was 0.950.  Prett= y damn close and given measurement error it might me meant to be right on.&= nbsp; Or, any difference could be made up by trimming down the spline on th= e damper plate or removing or adding spacers between the two.

So in = my mind, a flywheel is the way to go.  Stout, easy to get, pick your w= eight, only mods seem to be drilling the mounting holes and welding on a se= cond gear ring.

--
David Leonard

Turbo Rotary RV-6 N4VY
<= A href=3D"http://n4vy.rotaryroster.net/" rel=3Dnofollow target=3D_blank>htt= p://N4VY.RotaryRoster.net
http://RotaryRoster.net


<= /DIV>









--0-794909344-1310935510=:90732--